Hair curler



FIG. 1 is a perspective view of the hair curler, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a top view thereof; and,

FIG. 4 is a bottom view thereof.

The rear, left, and right views are identical to the front view. 

CLAIM The ornamental design for a hair curler, as shown and described. 